The principle of the test method specified is subjecting a test piece to uniaxial tensile strain at a prescribed constant rate within the region of uniform plastic strain. It is valid only for that part of the stress-strain curve in the plastic range where the curve is continuous and monotonic. The tensile strain hardening exponent is calculated either by considering a portion of the stress-strain curve in the plastic strain region, or by considering the whole of the uniform plastic strain region.
ISO 10275:1993 history
2020ISO 10275:2020 Metallic materials — Sheet and strip — Determination of tensile strain hardening exponent
2007ISO 10275:2007 Metallic materials - Sheet and strip - Determination of tensile strain hardening exponent
1993ISO 10275:1993 Metallic materials; sheet and strip; determination of tensile strain hardening exponent